Gives a great water effect. The instructions say you can do layers up to 3mm, but in my experience 3mm layers have a good chance of cracking, which can be mitigated by disturbing the surface slightly as it sets. This product isn't very useful to achieve depth, but is perfect for making a dry surface appear wet or slimy, creating a base layer for actual depth or to create a smooth, wet looking finish on top of other water modelling products.